Chat on WhatsApp
In the above example, replace "923253623514" with the phone number you want to open the WhatsApp chat with. The "height" and "width" values in the window.open method can be adjusted to your desired size.
It will open a new window of WhatsApp on web and the number will be pre-filled.
If you want to open directly on mobile device without web-browser, you can use the following link:
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Chat on WhatsApp
This code will open the WhatsApp mobile app (if